It's also a good idea to wash your engine with warm soapy water every couple of weeks to dislodge the excess dust and grime that builds up on your engine block.

Kaylee sends Wash an email telling him about the engine upgrade project she's working on, then asks where the nearest place to stop for parts is, and how long it will take to get there.

Recycling second-hand aircraft carrier, overhaul nuclear reactor, unpick and wash missile engine oil, clean aircraft carrier, space shuttle, maintenance, such change.